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Planar printed circuit-board transformers with effective electromagnetic interference (EMI) shielding 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H01F-005/00
출원번호 US-0282335 (2002-10-28)
발명자 / 주소
  • Hui, Ron Shu Yuen
  • Tang, Sai Chun
출원인 / 주소
  • City University of Hong Kong
대리인 / 주소
    Merchant &
인용정보 피인용 횟수 : 119  인용 특허 : 14

초록

Novel designs for printed circuit board transformers, and in particular for coreless printed circuit board transformers designed for operation in power transfer applications, in which shielding is provided by a combination of ferrite plates and thin conductive sheets.

대표청구항 ▼

1. A planar printed circuit board transformer comprising at least one conductive sheet located over a ferrite plate, said plate being located over a winding, for electromagnetic shielding.2. A planar printed Circuit board transformer comprising,(a) a printed circuit board, (b) primary and secondary

이 특허에 인용된 특허 (14)

  1. Murphy Michael T., Circuit element having at least two physically separated coil-layers.
    상세보기
  2. Danby Gordon T. (Wading River NY) Jackson John W. (Shoreham NY) Brukl Charles E. (Fort Salonga NY) Gudimetta Krishna M. (Hammond LA) Rimkunas Joseph F. (Massapequa NY), Eddy current control in NMR imaging system.
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  3. Takahashi Tadashi (Hitachi JPX) Onda Kenichi (Hitachi JPX) Kanouda Akihiko (Katsuta JPX) Horie Hideaki (Hitachi JPX) Hagiwara Syuya (Mito JPX) Uchiyama Noriyuki (Hitachi JPX) Saito Sadamu (Hitachi JP, Flat transformer and power supply unit having flat transformer.
    상세보기
  4. Ikeda Takeshi (2-5-6-213 Sanno ; Ohta-ku ; Tokyo JPX), Inductance and capacitance noise filter.
    상세보기
  5. Dantsker Eugene ; Clarke John, Low-noise SQUID.
    상세보기
  6. Walters Michael M. (Endwell NY), Method of making a monolithic magnetic device with printed circuit interconnections.
    상세보기
  7. Majid Dadafshar, Multi-layer, multi-functioning printed circuit board.
    상세보기
  8. Ikeda Takeshi (Tokyo JPX), Noise filter.
    상세보기
  9. Esper Michael J. (Farmington Hills MI) Haeberle Russell J. (Plymouth MI) Winegar Brian G. (Howell MI), Planar coil magnetic transducer.
    상세보기
  10. Stengel Robert E. (Pompano Beach FL) Nejdl Charles W. (Ft. Lauderdale FL), Planar inductors.
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  11. Ishikawa Yasuki (Yokosuka JPX) Endo Hiroshi (Yokosuka JPX) Sone Masazumi (Tokyo JPX) Imai Iwao (Yokosuka JPX), Plasma ignition system for an internal combustion engine.
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  12. Trenkler George (Providence RI) Delagi Richard G. (Sharon MA) Padovani Francois A. (Westwood MA) Winslow Donald L. (Raynham MA), Shielding material and shielded room.
    상세보기
  13. Commander Robert D. (Twyford GB2) Fenton Brian P. (Romsey GB2) Ramage John G. (Chandlers Ford GB2), Transformer coupled power switching circuit.
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  14. Tolfsen Ulf (Torsnes NOX) Syvertsen Nils S. (Slvstien NOX) Horsrud Johan (Kjerrebuen NOX), Transformer device.
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